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Alsachim offers you its expertise and know-how in isotope enrichment labeling (13C, 2H, 15N, 18O, 34S) to quantify your compounds by LC-MS/MS analysis. Our teams synthesize labeled internal standards and reference standards, as well as metabolites and building blocks.

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[reference-standards] Didanosine

Didanosine

Product Number: C3058

CAS number: 69655-05-6

Synonyms: 2',3'-Dideoxyinosine

[reference-standards] Stavudine

Stavudine

Product Number: C3250

CAS number: 3056-17-5

Synonyms: 2',3'-Didehydro-3'-deoxy-thymidine

[reference-standards] Zalcitabine

Zalcitabine

Product Number: C3738

CAS number: 7481-89-2

Synonyms: ddC, 2',3'-Dideoxycytidine

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[2H5]-11-Deoxycortisol

Product Number: C4999

CAS number: 1258063-56-7

Synonyms: Cortexolone-d5, 17,21-Dihydroxyprogesterone-d5, Reichstein's substance S-d5, 11-Deoxy-17-hydroxycorticosterone-d5

[metabolites] 11-Deoxycortisol

11-Deoxycortisol

Product Number: C5000

CAS number: 152-58-9

Synonyms: Cortexolone, 17,21-Dihydroxyprogesterone, Reichstein's substance S, 11-Deoxy-17-hydroxycorticosterone